H2SO4 loang thu difdc hSn hdp cac ancol. Dem toan bo lifdng ancol thu diTdc dam dot chay thu diTdc CO2 va niTdc theo ti I9 5 : 7 ve so mol. Vay 2 anken da dam dot chay thu diTdc CO2 va niTdc theo ti I9 5 : 7 ve so mol. Vay 2 anken da dem dot 1^:
Ạ C2H4 va C3H6 B. C2H4 va C2H6
C.C3H6vaC4H8 . D. C4H8 va CsHio
Cfiu 29. Khi phan tich mpt hdp chat huM cd chiira C, H, O thi c6 mc + mH = 3,5mọ Vay
cong tMc đn gian nhat cua A 1^:
A.C4H8O B.CjHfiO C.CH2O D.C2H3O
Cfiu 30. Dot chdy hoan tôn 0,05 mol ancol no X m^ch hd can 5,6 gam oxi v^ tao ra 6,6 gam CO2. Vay cong thiJc cau tao cua X la: 6,6 gam CO2. Vay cong thiJc cau tao cua X la:
A.C2H5OH B.C3H7OH C.C2H4(OH)2 D.C3H5(OH)3
Cfiu 31. Dot chdy hon hdp 2 ancol no dong ding c6 so mol b^ng nhau, ta thu difdc khi CO2 va hdi nUdc c6 ti 1? so mol nco2 '• ^H20 = 3:4. V|iy cong thiJc phSn tuf khi CO2 va hdi nUdc c6 ti 1? so mol nco2 '• ^H20 = 3:4. V|iy cong thiJc phSn tuf c(5a 2 ancol la:
Ạ C2H5OH va C3H7OH B. C2H4(OH)2 va C4Hg(OH)2
C. C2H4(OH)2 va C3H6(OH)2 D. C3H5(OH)3 va C2H4(OH)2
Cfiu 32. D^t chdy hoan toan a mol ancol no thu di/dc b mol CO2 va c mol H2Ọ V%y
a, bva c lien h? vdi nhau theo h? thiJc:
Ạ a = c - b B. b = a - c C.c = a - b D. a = b + 2c
Cfiu 33. Dot chay hoan toan a mol mOt hdp chat hu^ cd C„H2n-20^ thu difdc b mol
CO2 va c mol H2Ọ V$y a, b va c lien h? vdi nhau theo h? thtfc:
Ạ a = c - b B. b = a - c C. c = a - b D. a = b - c
Cfiu 34. Dot chdy hoan toan 13,4 gam h6n hdp 2 ankanol A va B la dong ding ke
tiep nhaụ Cho toan bp san pham qua dung dich Bă0H)2 dvl thi thu diidc 137,9 gam ket tuạ Biet khi tdch nifdc tilf 2 ancol tren chi cho 4 olefin. V|y t^n cia A gam ket tuạ Biet khi tdch nifdc tilf 2 ancol tren chi cho 4 olefin. V|y t^n cia A vaBlanliTdtia:
Ạ etanol va propan- l-ol B. propan- l-ol va butan-2-ol C. propan-l-ol va butan-l-ol D. propan-2-ol va butan-l-ol C. propan-l-ol va butan-l-ol D. propan-2-ol va butan-l-ol
Cfiu 35. Cho m gam mpt ancol no, đn chd'c qua binh dxing CuO dvl, nung n6ng. Sau khi phan tfng xay ra hoan toan, khS'i luTdng chat r^n trong binh gidm 0,32 gam. khi phan tfng xay ra hoan toan, khS'i luTdng chat r^n trong binh gidm 0,32 gam. H5n hdp thu dift?c c6 ti kh^i doi vdi hidro la 15,5. Gid tri cua m la:
Ạ 0.92 B.0,32 C. 0,62 D. 0,46 224 224
cfiu 36. X la mpt ancol no, mach hd. Dot chdy hoan toan 0,05 mol X can 5,6 gam
oxi, thu dtfdc hdi nUde va 6,6 gam CO2. Cong thiJc cua X la: i
A.C2H4(OH)2 B.C3H7OH C.C3H5(OH)3 D. C3H6(OH)2
Cfiu 37. Cho cdc sau: phenol, etanol, axit axetic, natri phenolat, natri hidroxit. S6
cap tdc dung difdc vdi nhau la:
Ạ 3 B.4 C. 1 D.2
Cfiu 38. Khi thUc hi^n phdn iJng tdch nifdc vdi ancol X, chi thu difdc anken duy nh^t.
Oxi h6a hoan toan mpt lifdng X thu dUdc 5,6 lit CO2 va 5,4 gam nifdc. H6i c6 nhieu
c6ngthỉccau taophil hdp vdiX?;i a . ^ ( H U i f J i i , i s (adsbygoogle = window.adsbygoogle || []).push({});
Ạ 2 B.4 C. 3 D.5
Cfiu 39. B6t chay mpt lifdng ancol A mach hd dutfc 15,4 gam CO2 va 6,3 gam nifdc. Mat
khac 0,1 mol A tic dung vdi Na dif thu difdc 0,1 mol H2. V$y nguyen tiJ C
trong A it nhat phai bkng:
Ạ 1 .#:t^^->t•(•?*>.•;»•. B. 2 « t n . • > i '^'Q\ht r ( ^ ; D. 4 - - f ' ;
Cfiu 40. Dot chdy hoan toan 0,1 mol etylen glicol va 0,2 mol ancol A cin 0,95 mol
O2. thif difdc 0,8 mol CO2 va 1,1 mol H2Ọ Cong iMc cda A la: & s; ^
A.C3H7OH B.C2H5OH C.C3H6(OH)2 D.C3H5(OH)2
Cfiu 41. Dot chdy hoan toan a mol mpt ancol đn chiJc, cd 2 lidn k€t d6i trong phan
tuf thu difdc b mol CO2 va c mol H2Ọ V|iy bi^u thtfc nao sau dSy diing?
Ạa = b - 2 c B. a = b - c C. b = a - c D.b = 2a + c
Cflu42. Cho chuoi phan iJngsaurii^'.-'^..'' .f!:tMM^ .{'i^-lJ
as tifi" íi^'>H ,;,ii,f/s;,Jij ifi'i 01 od..)..*•• •
V^ytencuaXva Ylanlifdtia: ':jim HíV 0'•
Ạ 1- brom-4-metylbenzen va 4-metylphenol. " JiD Jrn 3
B. 1- brom-2-metylbenzen va 2-metylphenol. i%'0M ' •